Summerfield, Michael A <br/><br/>
Global geomorphology   
by Michael A Summerfield 
 - England  Longman, Harlow  1991 
 - xiv, 537p 
<br/><br/><label>ISBN: </label>9780582301566 
<br/><br/><label>Dewey Class. No.: </label>551.41  / N91